NM_152232.6:c.2174G>A

Variant names:

• chr1-18839945-C-T
• rs768315702
• NM_152232.6:c.2174G>A

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 0P and 2B. BP4_Moderate

The NM_152232.6(TAS1R2):​c.2174G>A​(p.Arg725His) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000347 in 1,613,988 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R725C) has been classified as Uncertain significance.

• Frequency:
  • Genomes: 𝑓 0.000026 (0 hom., cov: 33)
  • Exomes 𝑓: 0.000036 (0 hom.)
• Consequence: TAS1R2 NM_152232.6 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 0.0810
• Publications: 2 publications found

Genes affected

TAS1R2 (HGNC:14905): (taste 1 receptor member 2) Contributes to sweet taste receptor activity. Involved in detection of chemical stimulus involved in sensory perception of sweet taste and positive regulation of cytokinesis. Part of sweet taste receptor complex. [provided by Alliance of Genome Resources, Apr 2022]

ACMG classification

Our verdict: Likely_benign. The variant received -2 ACMG points.

• BP4: Computational evidence support a benign effect (MetaRNN=0.10048357).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_152232.6. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	TAS1R2	NM_152232.6	MANE Select	c.2174G>A	p.Arg725His	missense	Exon 6 of 6	NP_689418.2	Q8TE23

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	TAS1R2	ENST00000375371.4	TSL:2 MANE Select	c.2174G>A	p.Arg725His	missense	Exon 6 of 6	ENSP00000364520.3	Q8TE23

Frequencies

GnomAD3 genomes AF: 0.0000263 AC: 4 AN: 152096 Hom.: 0 Cov.: 33

Gnomad AFR AF: 0.00

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.000385

Gnomad SAS AF: 0.000208

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.0000147

Gnomad OTH AF: 0.00

GnomAD2 exomes AF: 0.0000477 AC: 12 AN: 251444 AF XY: 0.0000662

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.00

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.000109

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.0000264

Gnomad OTH exome AF: 0.000326

GnomAD4 exome AF: 0.0000356 AC: 52 AN: 1461892 Hom.: 0 Cov.: 38 AF XY: 0.0000358 AC XY: 26 AN XY: 727246

African (AFR) AF: 0.0000299 AC: 1 AN: 33480

American (AMR) AF: 0.00 AC: 0 AN: 44724

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26136

East Asian (EAS) AF: 0.000302 AC: 12 AN: 39700

South Asian (SAS) AF: 0.000139 AC: 12 AN: 86256

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53420

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5768

European-Non Finnish (NFE) AF: 0.0000198 AC: 22 AN: 1112012

Other (OTH) AF: 0.0000828 AC: 5 AN: 60396

GnomAD4 genome AF: 0.0000263 AC: 4 AN: 152096 Hom.: 0 Cov.: 33 AF XY: 0.0000135 AC XY: 1 AN XY: 74300

African (AFR) AF: 0.00 AC: 0 AN: 41414

American (AMR) AF: 0.00 AC: 0 AN: 15280

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3472

East Asian (EAS) AF: 0.000385 AC: 2 AN: 5192

South Asian (SAS) AF: 0.000208 AC: 1 AN: 4806

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10600

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 316

European-Non Finnish (NFE) AF: 0.0000147 AC: 1 AN: 68016

Other (OTH) AF: 0.00 AC: 0 AN: 2088

Alfa AF: 0.00 Hom.: 0

Bravo AF: 0.0000113

ExAC AF: 0.0000494 AC: 6

Asia WGS AF: 0.000289 AC: 1 AN: 3478

EpiCase AF: 0.000109

EpiControl AF: 0.00

ClinVar

ClinVar submissions

Significance: Uncertain significance

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	1	-	not provided (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.087
BayesDel_addAF	Benign	-0.31	T
BayesDel_noAF	Benign	-0.42
CADD	Benign	12
DANN	Uncertain	0.99
DEOGEN2	Benign	0.13	T
Eigen	Benign	-0.60
Eigen_PC	Benign	-0.58
FATHMM_MKL	Benign	0.086	N
LIST_S2	Benign	0.79	T
M_CAP	Uncertain	0.12	D
MetaRNN	Benign	0.10	T
MetaSVM	Benign	-0.52	T
MutationAssessor	Benign	1.4	L
PhyloP100		0.081
PrimateAI	Benign	0.18	T
PROVEAN	Benign	-1.4	N
REVEL	Benign	0.13
Sift	Benign	0.12	T
Sift4G	Benign	0.17	T
Polyphen		0.13	B
Vest4		0.022
MutPred		0.63		Loss of catalytic residue at R725 (P = 0.0744)
MVP		0.79
MPC		0.18
ClinPred		0.025	T
GERP RS		3.0
Varity_R		0.096
gMVP		0.15
Mutation Taster		=96/4	polymorphism

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.0		Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Other links and lift over

dbSNP: rs768315702; hg19: chr1-19166439;